//
//  Device.swift
//  FastComponent
//
//  Created by lxf on 2022/9/9.
//


//
//  Device.swift
//  Device
//
//  Created by Lucas Ortis on 30/10/2015.
//  Copyright © 2015 Ekhoo. All rights reserved.
//

import UIKit

open class Device {
    
    public static var strictMode:Bool = false

    static fileprivate func getVersionCode() -> String {
        var systemInfo = utsname()
        uname(&systemInfo)
        
        let versionCode: String = String(validatingUTF8: NSString(bytes: &systemInfo.machine, length: Int(_SYS_NAMELEN), encoding: String.Encoding.ascii.rawValue)!.utf8String!)!
        
        return versionCode
    }
    
    static fileprivate func getVersionCodeBySimulator() -> String {
        let versionCode = ProcessInfo.processInfo.environment["SIMULATOR_MODEL_IDENTIFIER"]
        return versionCode ?? ""
    }
    
  // NOTES: - sources identifiers coming from https://www.theiphonewiki.com/wiki/Models / https://ipsw.me/otas
  
    static fileprivate func getVersion(code: String) -> Version {
        switch code {
            /*** iPhone ***/
            case "iPhone3,1", "iPhone3,2", "iPhone3,3":         return .iPhone4
            case "iPhone4,1", "iPhone4,2", "iPhone4,3":         return .iPhone4S
            case "iPhone5,1", "iPhone5,2":                      return .iPhone5
            case "iPhone5,3", "iPhone5,4":                      return .iPhone5C
            case "iPhone6,1", "iPhone6,2":                      return .iPhone5S
            case "iPhone7,2":                                   return .iPhone6
            case "iPhone7,1":                                   return .iPhone6Plus
            case "iPhone8,1":                                   return .iPhone6S
            case "iPhone8,2":                                   return .iPhone6SPlus
            case "iPhone8,3", "iPhone8,4":                      return .iPhoneSE
            case "iPhone9,1", "iPhone9,3":                      return .iPhone7
            case "iPhone9,2", "iPhone9,4":                      return .iPhone7Plus
            case "iPhone10,1", "iPhone10,4":                    return .iPhone8
            case "iPhone10,2", "iPhone10,5":                    return .iPhone8Plus
            case "iPhone10,3", "iPhone10,6":                    return .iPhoneX
            case "iPhone11,2":                                  return .iPhoneXS
            case "iPhone11,4", "iPhone11,6":                    return .iPhoneXS_Max
            case "iPhone11,8":                                  return .iPhoneXR
            case "iPhone12,1":                                  return .iPhone11
            case "iPhone12,3":                                  return .iPhone11Pro
            case "iPhone12,5":                                  return .iPhone11ProMax
            case "iPhone12,8":                                  return .iPhoneSE_2
            case "iPhone13,1":                                  return .iPhone12MINI
            case "iPhone13,2":                                  return .iPhone12
            case "iPhone13,3":                                  return .iPhone12Pro
            case "iPhone13,4":                                  return .iPhone12ProMax
            case "iPhone14,4":                                  return .iPhone13MINI
            case "iPhone14,5":                                  return .iPhone13
            case "iPhone14,2":                                  return .iPhone13Pro
            case "iPhone14,3":                                  return .iPhone13ProMax
            case "iPhone14,6":                                  return .iPhoneSE_3
            
            /*** iPad ***/
            case "iPad1,1", "iPad1,2":                          return Version.iPad1
            case "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":    return Version.iPad2
            case "iPad3,1", "iPad3,2", "iPad3,3":               return Version.iPad3
            case "iPad3,4", "iPad3,5", "iPad3,6":               return Version.iPad4
            case "iPad6,11", "iPad6,12":                        return Version.iPad5
            case "iPad7,5", "iPad 7,6":                         return Version.iPad6
            case "iPad4,1", "iPad4,2", "iPad4,3":               return Version.iPadAir
            case "iPad5,3", "iPad5,4":                          return Version.iPadAir2
            case "iPad2,5", "iPad2,6", "iPad2,7":               return Version.iPadMini
            case "iPad4,4", "iPad4,5", "iPad4,6":               return Version.iPadMini2
            case "iPad4,7", "iPad4,8", "iPad4,9":               return Version.iPadMini3
            case "iPad5,1", "iPad5,2":                          return Version.iPadMini4
            case "iPad6,3", "iPad6,4":                          return Version.iPadPro9_7Inch
            case "iPad7,3", "iPad7,4":                          return Version.iPadPro10_5Inch
            case "iPad8,1", "iPad8,2", "iPad8,3", "iPad8,4":    return Version.iPadPro11_0Inch
            case "iPad6,7", "iPad6,8", "iPad7,1", "iPad7,2",
                 "iPad8,5", "iPad8,6", "iPad8,7", "iPad8,8":    return Version.iPadPro12_9Inch
            
            /*** iPod ***/
            case "iPod1,1":                                     return .iPodTouch1Gen
            case "iPod2,1":                                     return .iPodTouch2Gen
            case "iPod3,1":                                     return .iPodTouch3Gen
            case "iPod4,1":                                     return .iPodTouch4Gen
            case "iPod5,1":                                     return .iPodTouch5Gen
            case "iPod7,1":                                     return .iPodTouch6Gen
            
            /*** Simulator ***/
            case "i386", "x86_64":
            
                if Device.strictMode {
                    return .simulator(getVersion(code: getVersionCodeBySimulator()))
                }
                return getVersion(code: getVersionCodeBySimulator())
        
            default: return .unknown
        }
    }
    
    static fileprivate func getType(code: String) -> Type {
        if code.contains("iPhone") {
            return .iPhone
        } else if code.contains("iPad") {
            return .iPad
        } else if code.contains("iPod") {
            return .iPod
        } else if code == "i386" || code == "x86_64" {
            if Device.strictMode {
                return .simulator(getType(code: getVersionCodeBySimulator()))
            }
            return getType(code: getVersionCodeBySimulator())
        } else {
            return .unknown
        }
    }
    
    static public func version() -> Version {
        return getVersion(code: getVersionCode())
    }
    
    static public func size() -> Size {
        let w: Double = Double(UIScreen.main.bounds.width)
        let h: Double = Double(UIScreen.main.bounds.height)
        let screenHeight: Double = max(w, h)
        
        switch screenHeight {
            case 480:
                return .screen3_5Inch
            case 568:
                return .screen4Inch
            case 667:
                return UIScreen.main.scale == 3.0 ? .screen5_5Inch : .screen4_7Inch
            case 736:
                return .screen5_5Inch
            case 812:
                return .screen5_8Inch
            case 896:
                return UIScreen.main.scale == 3.0 ? .screen6_5Inch : .screen6_1Inch
            case 1024:
                switch version() {
                case .iPadMini,.iPadMini2,.iPadMini3,.iPadMini4:
                    return .screen7_9Inch
                case .iPadPro10_5Inch:
                    return .screen10_5Inch
                default:
                    return .screen9_7Inch
                }
            case 1112:
                return .screen10_5Inch
            case 1194:
                return .screen11_0Inch
            case 1366:
                return .screen12_9Inch
            default:
                return .unknownSize
        }
    }
    
    static public func type() -> Type {
        return getType(code: getVersionCode())
    }

    @available(*, deprecated, message: "use == operator instead")
    static public func isEqualToScreenSize(_ size: Size) -> Bool {
        return size == self.size() ? true : false;
    }

    @available(*, deprecated, message: "use > operator instead")
    static public func isLargerThanScreenSize(_ size: Size) -> Bool {
        return size.rawValue < self.size().rawValue ? true : false;
    }

    @available(*, deprecated, message: "use < operator instead")
    static public func isSmallerThanScreenSize(_ size: Size) -> Bool {
        return size.rawValue > self.size().rawValue ? true : false;
    }
    
    static public func isRetina() -> Bool {
        return UIScreen.main.scale > 1.0
    }

    static public func isPad() -> Bool {
        if case .iPad = type() {
            return true
        }
        return false
    }
    
    static public func isPhone() -> Bool {
        if case .iPhone = type() {
            return true
        }
        return false
    }
    
    static public func isPod() -> Bool {
        if case .iPod = type() {
            return true
        }
        return false
    }
    
    /// only  Device.strictMode = true
    static public func isSimulator() -> Bool {
        let temp = Device.strictMode
        Device.strictMode = true
        if case .simulator = type() {
            Device.strictMode = temp
            return true
        }
        Device.strictMode = temp
        return false
    }
    
}

